Im very similar setup to you Jamie16v and going to stage 2 with KO3s as soon as ive put catch can on and sorted out actuator for new turbo.
I dont want to spend mega money either and will (hopefully) be happy with it at 230ish and call that enough.
Mine was 190 or something after remap (stage 1), then did 007p, CAI, FMIC, Lightened ABF flywheel with VR6 clutch.
After putting catch can in for removing all chance of a leak, and fitting forge actuator to ko3s for peice of mind, i will be driving up there to have it done, very early next year.
Paid 170/180 delivered for my turbo from ebay, off aparently a low milage audi TT, will never know, but Waz on here has confirmed that the turbo is a good one.